Starting sessions and creating SSH endpoints

Once you choose a runtime, you can start a session using the cdswctl sessions start command and create SSH endpoints using the cdswctl ssh-endpoint command.

The runtime ID used in the following steps is obtained using the steps outlined in Listing runtimes.

To start a session with a runtime, use the cdswctl sessions start command, specifying the runtime ID with the -r parameter and the project with the -p parameter.
For example:
```
cdswctl sessions start -r 2 -p demouser/runtimeproject
```
To specify SSH endpoints for the runtimes sessions, use the cdswctl ssh-endpoint command and specify the runtime ID using the -r parameter. and the project with the -p parameter.
For example:
```
cdswctl ssh-endpoint -r 1 -p demouser/runtimeproject
```